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Macrognathus pentophthalmos, the Sri Lanka five-eyed spiny eel, is a small species of spiny eel that is endemic to freshwater habitats in Sri Lanka.Described as a common species as recently as 1980, for unknown reasons its population rapidly declined in the following years and there are no recent confirmed records. [3]
Few fish can be found in all three ecological systems. There are 95 species of freshwater fish occur in the country, where 53 of those are endemic. 41% of all known species of fish of Sri Lanka are found in freshwater. There are about 70% of endemism of those fish. Most of them are listed into IUCN categories.
Gymnothorax polyuranodon, commonly known as the freshwater moray, is a species of moray eel that is native to the Indo-Pacific region, including Sri Lanka, the Philippines, Indonesia, Papua New Guinea, the northern coastline of Australia, and various islands in the western Pacific. Other common names include the many-toothed moray, spotted ...
It is a tropical, freshwater eel which is known from East Africa, Bangladesh, Andaman Islands, Mozambique, Malawi, Sri Lanka, Sumatra, and Indonesia and recently from Madagascar. [8] The eels spend most of their lives in freshwater at a depth range of 3–10 metres, but migrate to the Indian Ocean to breed.
Spiny eel. The name spiny eel is used to describe members of two different families of fish: the freshwater Mastacembelidae of Asia and Africa, and the marine (and generally deep sea) Notacanthidae. Both are so-named because of their eel -like shape and sturdy fin spines. These two families are not related: the Notacanthiformes belong to the ...
Fire eel - Wikipedia ... Fire eel
The animal life in freshwater comprises a great diversity. The organisms ranging from tiny protozoa to large mammals in size. Sri Lanka is a hydraulic civilization. First civilizations in Sri Lanka were originated closer to main rivers in Sri Lanka such as Mahaweli, Kelani, Malwathu and Gin Ganga. Rivers in Sri Lanka flow in a radial pattern ...
Tetrabranchus microphthalmus Bleeker, 1851. Ophisternon bengalense the Bengal eel, Bengal mudeel or onegill eel, is a species of fish in the family Synbranchidae. It is endemic to freshwater and brackish water rivers and swamps in Oceania and South Asia. It is normally 100 cm in maximum length. [2]